How mobile-friendly is S7 Airlines?
S7 Airlines provides an iOS app that is compatible with iPhone, iPod, and iPad.
Also, if you're a member of S7 Airlines S7 Priority, you can manage your profile, view your points balance, and more.
The Android apps from S7 Airlines work with all Android phones and tablets from various manufacturers (Samsung, LG, Google, etc.), and Android Wear watches might also be compatible. As is often the case, the Android app offers the same functionality as the iOS app.
Also take a look at S7 Airlines's website by clicking here — you should be able to do what you need there.